GEOLOGY

Detailed explanation-1: -As stated, oceanic plates are denser than continental ones. This is because they are made of denser rocks. Oceanic plates are typically composed of basalt. Basalts are mafic igneous rocks, which means they have a silica (quartz) content of less than 20% and are created by the cooling of lava.

Detailed explanation-2: -The oceanic crust is subducted under the continental as it is naturally denser than the continental crust. When a continental plate collides with an oceanic plate, the oceanic plate crust subducts beneath the continental crust due to its high density and its higher specific gravity, thus forming a subduction zone.

Detailed explanation-3: -Oceanic crust is generally composed of dark-colored rocks called basalt and gabbro. It is thinner and denser than continental crust, which is made of light-colored rocks called andesite and granite. The low density of continental crust causes it to “float” high atop the viscous mantle, forming dry land.

Detailed explanation-4: -why do you think the ocean crust contains rocks that are denser than the rocks found on land? The ocean crust contains rocks that are denser because the Ocean lithosphere is mainly composed of basaltic where the upper levels are basalt and the lower levels are gabbro.